#1B5382#1B5382

#1B5382 is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.0% C 0.097 H 247.9°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B5382
RGB	rgb(27, 83, 130)
HSL	hsl(207, 66%, 31%)
HSV	hsv(207, 79%, 51%)
CMYK	cmyk(79.2%, 36.2%, 0%, 49%)
CIE-LAB	lab(34.05, -0.56, -31.54)
CIE-LCH	lch(34.05, 31.55, 268.98°)
OKLab	oklab(43.04% -0.0364 -0.0897)
OKLCH	oklch(43.04% 0.097 247.9)
XYZ	xyz(7.5730, 8.0303, 22.2657)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5382 #824A1B

analogous

#1B827D #1B5382 #1B1F82

triadic

#1B5382 #821B53 #53821B

tetradic

#1B5382 #7D1B82 #824A1B #1F821B

square

#1B5382 #7D1B82 #824A1B #1F821B

split-complementary

#1B5382 #821B1F #827D1B

monochromatic

#06121D #10334F #1B5382 #2673B5 #4092D7

Accessibility & contrast

On white

8.06

#1B5382 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#1B5382 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5382

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5382	#FFFFFF	#000000	##FFFFFF
##1B5382	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5584

Deuteranopia (green-blind)

#2E4C81

Tritanopia (blue-blind)

#005E64

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b5382;
/* rgb */ color: rgb(27, 83, 130);
/* oklch */ color: oklch(43.0% 0.097 247.9);

Tailwind

colors: {
  custom: {
    50: '#6883a6',
    500: '#1b5382',
    950: '#000000',
  },
}

SCSS

$custom: #1b5382;
$custom-light: #6883a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5382",
  "rgb": {
    "r": 27,
    "g": 83,
    "b": 130
  },
  "hsl": {
    "h": 207.379,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.43042,
    "c": 0.09682,
    "h": 247.9
  },
  "luminance": 0.08031
}

Semantic roles & 50–950 ramp

primary

#1B5382

secondary

#B67743

accent

#8D3FE9

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1B5382

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →